OTHER FINANCIAL INFORMATION - Schedule of Prepaid Expense and Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Clinical trials	$ 2,815	$ 3,544
Clinical drug substance and product manufacturing	2,252	1,998
Software licenses	1,285	816
Outside research and development services	736	642
Other	410	382
Prepaid expense and other current assets	$ 7,498	$ 7,382